In a segment from his InfoWars show, Jones continued to push the theory that the truck collision was a deliberate act of sabotage.

“A truck kamikaze rammed [the train], a cement truck, a big truck, a dump truck kamikaze rammed it,” he said of the incident. “Rammed the front of the train, killing the driver and derailing part of the train. I mean, this is amazing. So this country is in a civil war. You can believe this was on purpose. I mean, I’d say 98 percent chance. This is unbelievable.”

The New York Times reported Wednesday that the truck involved in the crash belonged to Time Disposal, a waste and recycling collection company, and that the trucks’ passengers have not been identified. The National Transportation Safety Board is investigating the crash.

Jones quickly connected the incident to the shooting incident from July in which a lone gunman opened fire on lawmakers at a Republican congressional baseball practice in Alexandria, Virginia.

The conspiracy theory quickly propagated and evolved across social media as it found wider audiences on several platforms.

On YouTube, according to a Fast Company report, Jones’ live stream coverage of the incident turned up first on search results while the third video alleged that the crash was an “attempted assassination”—a conspiracy narrative picked up on 4chan’s /pol/ message board, known for its unapologetic and extreme right-wing humor, to mixed reception.

Fast Company criticized YouTube and reflected that the company needed to “rethink how it prioritizes uploaded videos.” YouTube did not respond to the publication’s request for comment.

Meanwhile, on Facebook—a platform that has been put under pressure to tackle fake news and disinformation—numerous links promoted the “Democrat dump truck” conspiracy theory.

The Daily Beast reported that Facebook’s topical “People Are Saying” section—which curates trending news—appeared to boost user status updates that questioned the official story of the accidental collision.

One featured post linked to an ABC News article and questioned: “how Hillary [Clinton] still has the power to order these kinds of strikes”—as if the crash were a military attack. Another post linked to a Daily Caller article promoting the conspiracy.

Just on Monday, Facebook CEO Mark Zuckerburg promised, “a series of updates to show more high quality, trusted news.” While these updates may still be in the works, many are taking the explosion of this conspiracy theory as proof of the outstanding problem.